Description The item is a safe light holders and bulbs kit for electricity teaching. It helps children to consolidate their knowledge in books and gain a deeper understanding of the basic of current. Through setting up simple circuits, easier for your child to learn basic electrical rules and improve students' hands-on ability, thinking ability, creativity, and improvement. Features -Color: Black-Material: Plastic,aluminum-Bulb holder size: About 3.0 x 2.0 cm / 1.18 x 0.79 inches-Suitable voltage: 1.5-220V-Suitable current: ≤ 2A-Model: E10-Value set: The science teaching aids set contain light holders and small bulbs.-Premium material: Made of premium quality plastic materials for safe and long-lasting use.-Easy to use: Screw type binding post of E10 bulb holders for removal and installation of connecting wires quickly.-Develop ability: Improving students' hands-on ability, thinking ability, creativity, and awareness of electricity.-Widely usage: Commonly used old flashlight accessories lamp holders, DIY science equipment in physics teaching, and so on.Packing list: 5 x Lamp Holders5 x Bulbs